geology vs morphological

geology is a noun but morphological is not a noun.

Word	Noun	Adjective	Verb	Adverb
geology	Yes	No	No	No
morphological	No	Yes	No	No

geology (noun)	morphological (noun)
a science that deals with the history of the earth as recorded in rocks

geology (adjective)	morphological (adjective)
	relating to or concerned with the morphology of plants and animals
	relating to or concerned with the formation of admissible words in a language
	pertaining to geological structure